Finger Positions

Root Note D#

Name D# dominant flat ninth over G#

Intervals 1P-3M-5P-7m-9m

Relative Minor Cm

Notes G#, D#, G, A#, C#, E

Aliases D#7b9

How to play the D#7b9/G# Chord

The D#7b9/G# is a fundamental dominant chord in guitar music. To play this chord correctly, ensure your fingers are placed precisely on the frets indicated in the diagram above.

Music Theory Analysis

From a theoretical perspective, the D# dominant flat ninth over G# is built using the 1P, 3M, 5P, 7m, 9m intervals. In the key of D# Major, this chord functions as the I chord.

Common Progressions

In music composition, the D#7b9/G# chord is often used to create tension or resolution.

I-V-vi-IV

D# → A# → Cm → G#

vi-IV-I-V

Cm → G# → D# → A#

The Diatonic Family

Understanding the "family" of chords that belong to D# helps with transposition and ear training.

Triads

D# Fm Gm G# A# Cm Ddim

7ths

D#maj7 Fm7 Gm7 G#maj7 A#7 Cm7 Dm7b5

Scale Compatibility

View All Scales

Phrygian Dominant Flamenco Spanish Heptatonic Half-Whole Diminished Chromatic

* 5 scales found containing the notes G#, D#, G, A#, C#, E.

Acoustic & Digital Analysis

Digital footprint of the D#7b9/G# chord for MIDI programming and synthesizer sound design.

MIDI Numbers 68, 63, 67, 70, 61, 64

Frequencies (Hz)

415.3046975799451, 311.1269837220809, 391.99543598174927, 466.1637615180899, 277.1826309768721, 329.6275569128699